scholarly journals Bacterial Symbiosis in Ciliates (Alveolata, Ciliophora): Roads Traveled and Those Still to be Taken

2022 ◽  
Author(s):  
Sergei I. Fokin ◽  
Valentina Serra
Keyword(s):  
Bacterial Symbiosis

scholarly journals Nitrogen-fixing bacteria and Oxalis – evidence for a vertically inherited bacterial symbiosis

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Michelle Jooste ◽  
Francois Roets ◽  
Guy F. Midgley ◽  
Kenneth C. Oberlander ◽  
Léanne L. Dreyer
Keyword(s):  
Endophytic Bacteria ◽  
Sequence Data ◽  
Fluorescent Microscopy ◽  
Nitrogen Deficiency ◽  
Nitrogen Fixing ◽  
Vertical Inheritance ◽  
Bacterial Symbiosis ◽  
Plant Growth Promoting ◽  
Potential Benefits ◽  
Exclusion Experiments

Abstract Background Plant-endophyte symbioses often revolve around nitrogen metabolism, and involve varying degrees of intimacy. Although evidence for vertical inheritance of nitrogen-fixing endophytic bacteria is increasing, it is confined mostly to crop plants, and to date no such system has been reported for geophytes. Methods Bacterial endophytes associated with Oxalis, the most species-rich geophytic genus form the Cape Flora in southern Africa was studied. Culturable endophytes were isolated from surface-sterilized vegetative and reproductive plant organs for six host species at three locations. Colonies of microbes on various artificial media were morphotyped, enumerated and identified using sequence data. Filter exclusion experiments were conducted to determine if endophytes were vertically transmitted to seeds, determine if mucilage plays a role to actively attract microbes from the soil and to assess microbial richness isolated from the mucilage of Oxalis seedlings. Fluorescent microscopy was implemented in order to visualize endophytic bacteria in cryo-sectioned seeds. Results Evidence for a novel, vertically transmitted symbiosis was reported. Communities of nitrogen-fixing and plant growth-promoting Bacillus endophytes were found to associate with selected Oxalis hosts from nitrogen-deficient environments of the Cape. Bacillus endophytes were ubiquitous and diverse across species and plant bodies, and were prominent in seeds. Three common nitrogen-fixing Bacillus have known oxalotrophic properties and appear to be housed inside specialised cavities (containing oxalates) within the plant body and seeds. Conclusions The discovery of vertical transmission and potential benefits to both host and endophyte suggest a particularly tight mutualism in the Oxalis-endophyte system. This discovery suggests unexpected ways in which geophytes might avoid nitrogen deficiency, and suggest that such symbioses are more common than previously expected.

scholarly journals First Description of Sulphur-Oxidizing Bacterial Symbiosis in a Cnidarian (Medusozoa) Living in Sulphidic Shallow-Water Environments

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0127625 ◽  
Author(s):  
Sylvie Abouna ◽  
Silvina Gonzalez-Rizzo ◽  
Adrien Grimonprez ◽  
Olivier Gros
Keyword(s):  
Shallow Water ◽  
Bacterial Symbiosis

scholarly journals A note on bacterial symbiosis

1912 ◽  
Vol 133 (6) ◽  
pp. 426-427
Author(s):  
J. Charles Johnson
Keyword(s):  
Bacterial Symbiosis

Calcium ions-effect on performance, growth and extracellular nature of microalgal-bacterial symbiosis system treating wastewater

2021 ◽  
pp. 112228
Author(s):  
Cong-Cong Tang ◽  
Xin-Yi Zhang ◽  
Rong Wang ◽  
Tian-Yang Wang ◽  
Zhang-Wei He ◽  
...  
Keyword(s):  
Calcium Ions ◽  
Bacterial Symbiosis

Bacterial symbiosis in the fish gut and its role in health and metabolism

Symbiosis ◽  
2016 ◽  
Vol 72 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Goutam Banerjee ◽  
Arun Kumar Ray
Keyword(s):  
Bacterial Symbiosis ◽  
Fish Gut
Sign in / Sign up

Export Citation Format

Share Document